Plasma Jets from Radio Galaxy Hercules A . ... Credit Copyright: NASA , ESA , S. Baum C. O'Dea ( RIT ), R. Perley and W. Cotton ( NRAO / AUI / NSF ), . ... No one is sure, but it is likely related to an active supermassive black hole at its center. ... Detailed analyses indicate that the central galaxy, also known as 3C 348 , is actually over 1,000 times more massive than our Milky Way Galaxy, and the central black hole is nearly 1,000 times more massive than the black hole at our Milky Way's center. ...